FR2597892A1 - Machine for manufacturing velour carpets, with patterns, implemented by numerical control - Google Patents

Abstract

The present invention relates to a novel machine for manufacturing carpets, rugs or the like, with several patterns, colours and profiles. In order to produce these products the present invention uses a mechanism which can be implemented by numerical control. The patterns and selections of colour will be produced from software containing the various displacement instructions for the insertion head and for the choice of colours of the strands as well as for the line by line advance of the support fabric. The insertion of the tufts into the support will be done by a mobile head moving laterally above the support fabric with a movement similar to that of the printer. The patterns are formed point by point by selecting threads from a very vast colour palette only necessitating a single spool of stock per colour. The elements of the insertion head will be adjustable so as to obtain various thicknesses of strands.

Description

DESCRIPTION & PfLAMBUL ?:
The present invention relates to a machine for making velvet carpets with designs of several colors, which may have a structure in which the thread is brought to the anchor point and is implanted in a tuft in a support fabric. The mechanisms for advancing the support fabric, advancing the insertion head, movements in the insertion head (selection of the thread, implantation of the tuft) are implemented by a step and step motor and programmed at from software developed from a computer.

According to the example of embodiment, the new machine for stitching the hair comprises
Figure 1, a completely mobile comprising: a hollow needle 12, a piston 13 grout
inside, a cruciform punch 9 - the assembly having an alter movement
native from bottom to top, and from top to bottom - adjustable in height, moving laterally
LEMENT above a support fabric driven by a roller system, a
grooved cylinder (5) 6 - the needle 12 has a notch 10 where the thread will be housed
to initiate the drive movement.

FIG. 2 represents a cassette comprising 1, 2, 3 or 4 micro-clamps A in
which a different color thread is engaged. The cassette moves in OY
to present in the axis of needle 12 the selected wire which will be implanted
in the support 7 via the needle 12.

The operations are broken down as follows: 1 - Positioning of the cassette corresponding to the color of the selected thread.

This positioning of the cassette places the thread in tension between a fixed clamp A and a movable clamp B. The thread is then perfectly aligned under the needle 12.

2 - The needle 12 containing the piston 13 descends introducing the wire into the pilot hole drilled by the needle 9. The piston 13 completes the insertion of the wire until penetration into the groove 6 - (fig 2) 3 - The needle 13 rises at the same time as the piston 12.

4 - Cut the thread in 4.

5 - The mobile micro-clamp B, releases the end of the wire and moves to grip the wire at b.

6 - The micro-clamp B returns to the original position to put the wire back in tension between the clamp  and the clamp 3.

7 - The sequence is again in the situation indicated in 1.

 Although the selection cassette is shown as receiving wires from three or four devices, it goes without saying that this number may vary and that additional colors may be received. Of course, the invention is in no way limited to the execution details described, to which numerous changes and modifications can be made without departing from its scope.

Claims (1)

CLAIMS I - Machine for manufacturing. carpet, comprising a) a frame b) a work table  c) a support fabric roller system  d) a grooved cylinder characterized in that a movable head for inserting tufts into the support fabric, by means of a hollow needle (12) in which a piston (13) slides, means for imparting a movement alternative from bottom to top of the said needle and the Diston. movens to supply said needle with tuft of hair. a cruciform punch punching a pilot hole in the support fabric at the front of the needle. the insertion head being applied laterally above the support fabric. line by line. point by point by nuneriaue command. A system of bending tufts will cut the wire at the height of the movable pins (B). -A vacuum system where air is sucked in keeps the threads in gripper, layers the tuft previously inserted, sucks debris and dust.  II - Machine according to claim-I characterized in that it comprises an insertion head, using a hollow needle (12) and in that a piston (13) slides in the bore of the needle, the needle and the piston having means for imparting an upward and downward movement. III - Machine according to the claims of I a Ilcaractérisée in that the adjustment of the stroke of the needle heu down, and from bottom to top can obtain different heights da tuft of thread. IV - Machine according to claims from I to III characterized in that a cruciform punch (9) perforates the support fabric at the front of the needle to facilitate the insertion of tufts by the piston (13). V - Machine according to the claims of I to IV characterized in that a system of knives will cut the wire (fig. 3) at A to obtain the velvet.  - - Machine according to claims from I to V characterized in that a cassette case (fig.4) comprising several micro-clamp 1,2,3,4 in which a wire of different color is engaged, selects a wire for present it in the axis of the needle under tension. VII - Machine ~ according to the claims of I a VI characterized in that a micro-clamp system A and B maintains the selected thread on either side of the needle (12), a clamp being fixed A, l other mobile B.